Heavy-Duty Steel Construction: ;Powder-coated carbon steel brackets withstand 500+ lbs load without bending or warping.Precision 4×4 Fit: ;Designed for standard 3.6″x3.6″ (nominal 4×4) posts with 90° perfect angle alignment.All-Weather Durability: ;Rust-resistant coating protects against rain, snow, and extreme temperatures.Easy Assembly: ;Includes pre-drilled brackets and screws for tool-free installation.Multi-Purpose Use: ;Ideal for pergolas, fences, mailboxes, and playhouses in residential/commercial spaces.